<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
    </div>
</body>
<script src="./node_modules/vue/dist/vue.js"></script>
<!-- 1. 引入 vuex 依赖 -->
<script src="./node_modules/vuex/dist/vuex.js"></script>
<script src="./node_modules/axios/dist/axios.js"></script>
<script>

     let moduleA ={
         state:{
             num:123
         },
         mutations:{},
         actions:{},
         getters:{},
     }
     let moduleB ={
         state:{
             num:456
         },
         mutations:{},
         actions:{},
         getters:{},
     }
     let store = new Vuex.Store({
         modules:{
             a:moduleA,
             b:moduleB
         }
     })
     console.log(store.state.a.num);
     console.log(store.state.b.num);
     let vm = new Vue({
         store,
         el:"#app"
     })
</script>
</html>